Make numFolderRows/numFolderColumns accept more values

Now they can hold values for different configurations, making it akin to iconSize.

Bug: 309800141
Test: DeviceProfileResponsiveDumpTest
Test: DeviceProfileResponsiveAlternativeDisplaysDumpTest
Test: DeviceProfileDumpTest
Test: DeviceProfileAlternativeDisplaysDumpTest
Flag: ACONFIG com.android.launcher3.enable_responsive_workspace TEAMFOOD
Change-Id: I9d5cccda88a0311dbe0beecef194cc8d60c5c280